Abstract
A method is presented to quantitate four β2-agonists (orciprenaline, clenbuterol, salbutamol and ractopamine) in meat, liver and kidney, by GC–MS, using dual internal standards, fenoterol and metoprolol. The procedure involves liquid–liquid extraction, followed by a solid phase clean-up step and derivatization. Mass spectral acquisition was done in selected ion monitoring mode to provide a high degree of sensitivity, achieving a limit of detection of 0.04–0.09 μg kg−1 and quantitation of 0.20–0.30 μg kg−1. The typical recoveries of analytes spiked at 10, 1 and 0.1 μg kg−1 were at 80.0–102.0, 77.6–90.7 and 52.0–87.4%, respectively.
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Acknowledgments
This research is sponsored by the Youth Fund of Chengdu Health Bureau (Juqing 05018). We must give personnel thanks to Ms. Wan Xiong for her editing for our manuscript.
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Wang, L., Li, YQ., Zhou, YK. et al. Determination of Four β2-Agonists in Meat, Liver and Kidney by GC–MS with Dual Internal Standards. Chroma 71, 737–739 (2010). https://doi.org/10.1365/s10337-010-1495-z
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DOI: https://doi.org/10.1365/s10337-010-1495-z